cooper, 1935 1/2 mi. N. Arlington, Contra Costa Co., Calif. Mar. 29, is due to green paint derived from a paint can which served as a container for retaining the reptile. 2 mi. E. Bishop, Inyo Co., Calif. May 21, Last night I set out 30 mouse traps, about 10 spaces apart, at the above local- ity, which is due east of Bishop on East Line St., the main road to the Owens River. Squaw tea (Ephedra) sage, and other xerophytic plants indicate the zonation to be Lower Sonoran in this immediate area. Many Kangaroo rat burrows were visible in the day, sandy soil. Most were within a foot from the base of a sage bush, however a few were out in the open, 5 or 6 ft. from any vegetation. Some burrows were open but the majority were at least partially closed by sand, only tracks and tail marks indicating that the holes were inhabi- ted; the diameters of the burrow mouths varied, though seemed to fall into two general size groups, one approximately 1 1/2 in. in diameter and the other approximat